Power supply / Batteries

Background: The BJ5000Ex work as a generator when wheel is pulled backwards. This is common when sinker is stuck in the ocean bottom floor while boat is drifting or when the catch is pulling out with more force then choosen DRAG setting. BJ5000Ex sends the current generated by the machine back to the battery and makes the motor harder to rotate backwards, acts as a brake. To let the catch run is common way to make the catch tired. The machine will pull it in as soon the catch gets tired.

However....the energy must be able to get back into the battery as easy as possible. Long wires and bad connections will generate power loss, or voltage drop. With each voltage drop the internal volt in BJ5000Ex increases.  Too high internal voltage will damage the electronic.

AC/DC: Using of an power supply source like AC/DC is absolutely forbidden when thy can't receive any current. Then can only deliver current. Running the machine with AC/DC will fast damage the electronic board very fast if the motor is forced backwards.

Battery LiFePO4 : The newer type of battery, the LiFePO4 might be a problem when they seems to  be able to stop charging. This would be similar to running the machines with AC/DC. Else running the machines on theese types of batteries should work fine. 

Some customers has powerbanks of LiFePo4 fully charged by land power when starting the day, connected to BJ5000Ex  only and not connected to the boats chargers/alternator.  In this case the batteries will not be overcharged. 

Using External main switch: The BJ5000Ex should never be connected to other electronic devices in the boat. This is to minimize the EMC both from and to the machine, but also the BJ5000Ex drains alot of power when working hard.

The machine should be connected with the factory mounted power supply cable directly to the led batteries 12/24 VOLT DC. A fuse of 15/25 ampere and external switch can be used, but only one machine per switch .